miniaturemolds.com

MOLD MAKING MATERIALS FOR 
MAKING YOUR OWN MOLDS

DO YOU WANT TO CREATE YOUR OWN MOLD?

Since we offer the following three moldmaking processes and materials we will attempt to make your selection the right one for your project:

RTV Silicones (Room Temperature Vulcanization) Materials
A home vulcanizer (Vulc-A-Mold tool using raw silicone slabs)
Quick-Sil a fast setting RTV Silicone material

Each of the above has its advantages and limitations. First, you should consider the material of the original model you will be using for making your mold, its size, does it have any undercuts, how many pours (replicas you intend on making) and how many different molds you desire to make. By checking these you should be able to determine which material best suits your needs. Instructions for use of each of these materials appear on our website for you to peruse.

RTV SILICONES

RTV silicones are easy to work with, provide detail reproductions and models can be of most any materials (since no heat nor pressure is applied during vulcanization), and of any size or shape. Simple open face molds (for objects that require only one side to be detailed and the reverse being a flat non-descript surface) can be made in 8 hours while a two-part mold generally is made in two 8-hour sessions over two nights. The limitations are as follows:

  1. It takes longer to make a mold using this process.
  2. The mold produced (with the higher temperature silicones up to 700degrees F) is not a long life mold. If the model does not have any undercuts (where you may tear the mold when releasing it) you should be able to obtain 25-40 pours (or less) before the mold is no longer useable. The low temperature silicones have a higher tear strength but will not accept casting materials over 450 degrees F without mold damage (pouring materials should be Alumilite-a super casting plastic, plaster, or resins). This material is better for models with slight undercuts as the mold is more flexible.
  3. Material costs are higher.
  4. For a two part mold you will need the mold release cream (#5001 & 40000 mold clay).

We offer the RTV in pints, quarts and gallons.
The high temperature silicones are numbered 20600 (pint), 20700 (Qt.) and 20800 (gal.)
The high tear strength silicones are numbered 20601 (pint), 20701 (Qt.) and 20801 (gal.)

QUICK-SIL RTV PUTTY

Quick-Sil is a revolutionary new mold making material producing a very long lasting (1000ís of uses) silicone rubber mold that accurately reproduces detail with % shrinkage in only 15 minutes (for an open face mold) or 30 minutes for a double sided mold. This is a two-part (A&B) material that needs no careful or precise mixing. No messy liquids and no vulcanizer needed.

Models may be of almost any type material (no wax or hollow cast figures as pressure is required for satisfactory vulcanization). Paint removal of original model is not necessary. Complete Kit #50000 includes 2-lb Quick-Sil kit, adjustable wood mold frame press, mold release cream and 1- lb. mold clay. Limitations:

    1. A mold frame press (item #5002) or jewelry mold frame is required for satisfactory results.
    2. Model size limitations 7 ‡" in length, 4 ‡" width, 3 ‡" diameter.
    3. Mold release cream required (item #5001).
    4. Packed only in a 2-lb. Kit containing equal parts A&B cost $40 U.S. (this should allow you to make at least 2 molds of roughly 4x3x1" size).

The above information is presented to allow you to make the best choice of a method and material for your mold making projects. Complete instructions of the mold making process are provided with each material ordered.

Check our Internet site for "Monthly Internet Specials".

"You can make a mold of your own original model"

[QUICK-SIL]   [LIQUID RTV]  [VULC-A-MOLD]

Would you like to make replicas of pirate coins (pieces of 8), medallions, religious figures, collectable figures, etc.?   We have a variety of mold making materials that will enable you to reproduce your originals in cast metal or Alumilite plastic.  The molds are easy to make and the casting is fun!  All you need is an idea. 
Click on any of the mold making materials listed above or below to learn more.

NEW RTV MATERIALS MAKE CUSTOM MOLD MAKING EASIER AND FASTER. Now you can make your own custom silicone rubber molds for metal casting easier with our new RTV
(Room Temperature Vulcanization) materials.

We carry (2) RTV materials: Quick-Sil & Liquid RTV

Liquid RTV Kits are available in 1.1 lb., 2.2 lbs., and gallon size (11 lbs.).
Quick-Sil Kits come on (2) 1 lb. containers, A&B

Making a reusable mold with Room Temperature Vulcanization Silicone Rubber is easy, fast curing, Ideal for use with plastics and wax originals or models too large for our Vulc-A-Mold tool.

The Vulc-a-mold Tool is a quality home vulcanizing tool enabling you to make a long lasting, reusable, silicone rubber mold, in a toaster oven in just 1 hour.  It requires no other special tools or previous mold making experience. You can produce many copies of an original with little loss of detail.


HOW TO DETERMINE THE VOLUME OF RTV RESIN OR ALUMILITE

FOR MAKING OR POURING A MOLD

 

FORMULA:  To find the volume in a square or rectangular form (The form is the cavity you have selected or built into which you are going to pour).

Length x Width x Height = cubic inches
Example: 3î x 4î x 2î = 24 cubic inches
Take .554 x 24 cubic inches = 13 º ounces

  FORMULA:  To find the volume of a round (cylinder) form.
                   3.14 (pie) x radius squared x height.

  EXAMPLE: 6î diameter cylinder x 3î tall
3.14 (pie) x Radius (1/2 the diameter) SQUARED (to square a number, take the number and multiply it by the same number) Example: 3 squared will be 3 x 3 = 9 

So you will use 9 as the radius squared number and then multiply it by the height.  This will give you cubic inches.

  3.14 x 9 x 3î tall.
3.14 x 9 = 28.26 x 3î = 84.48 cubic inches.

  Now use the formula to find the number of ounces.  (cubic inches x .5654 ounces)
84.78 x .554 = 46.968 ounces or rounded off to 47 ounces.

          

[QUICK-SIL]   [LIQUID RTV]  [VULC-A-MOLD]

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